Home / 9,036.16-13,553.60-5,128.32

Finding the Fourth Proportional to 9,036.16, 13,553.60 and 5,128.32

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Solution

The fourth proportional to 9,036.16, 13,553.60 and 5,128.32 is: 7,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,036.16 : 13,553.60 = 5,128.32 : x
  2. Step 2: Convert to fraction form
    9,036.16/13,553.60 = 5,128.32/x
  3. Step 3: Cross multiply
    9,036.16x = 13,553.60 × 5,128.32
  4. Step 4: Simplify right side
    9,036.16x = 69,507,197.95
  5. Step 5: Solve for x
    x = 69,507,197.95/9,036.16
  6. Step 6: Final answer
    x = 7,692.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.